The upcoming Quentin Tarantino film is about “a faded TV actor and his stunt double who embark on an odyssey to make a name for themselves in the film industry during the Helter Skelter reign of terror in 1969 Los Angeles.”

Debra acts as a producer on the upcoming movie, which is being directed by Kate‘s husband, Michael Polish.

The reason is because “it has nothing to do with Sharon’s death,” she told People.

“They’re telling her story as a woman aside from the murders. Kate is going to capture Sharon’s heart, feeling and attitude.”

Kate posted an update about the movie on her Instagram on Wednesday (March 7).

“It is my honor to play Sharon Tate in our next film TATE. This movie will only celebrate her life. We will not violate her or exploit her death. For too long this beautiful woman made of light has had to endure tragedy. It is time to take away the microphone from the maniac. It’s her time. Thank you Debra Tate for joining us in sharing your sister’s life. I know, with you as our producing partner- we will do right. I love you. And to my husband- who stands with me, everyday, striving to bring female forward stories to the screen. I love you. Simply, you are the greatest,” she wrote.

If you don’t know the story, Sharon was 26-years-old and just about nine months pregnant with her first child with husband Roman Polanski when she was brutally stabbed to death in her home by members of Charles Manson‘s cult back in 1969.

“It doesn’t matter who it is acting in it – it’s just tasteless,” she continued. “It’s classless how everyone is rushing to release something for the 50th anniversary of this horrific event.”

There are also reports that Sharon had a premonition that the murders would happen, which could be the premise of Hilary‘s new movie. Debra responded to this.

“I know for a fact she did not have a premonition — awake or in a dream…I checked with all of her living friends. None of her friends had any knowledge of this. Tacky, tacky, tacky,” Debra continued. “It’s a total fabrication.”

After a couple weeks of teasing, the 30-year-old actress took to Instagram to share a selfie of herself in character as Sharon Tate in the upcoming thriller film The Haunting of Sharon Tate about the late actress’ brutal murder.

“Had the incredible opportunity of playing Sharon Tate the past two weeks in an independent movie. She was an amazing woman and it was a true honor,” Hilary captioned the below photo.

Sharon was 26-years-old and 8 and half months pregnant with her first child with husband Roman Polanski when she was brutally stabbed to death in her home by members of Charles Manson‘s cult back in 1969.